Vladimir Oltean says:

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tc-cbs offload fixes for SJA1105 DSA

Yanan Yang has pointed out to me that certain tc-cbs offloaded
configurations do not appear to do any shaping on the LS1021A-TSN board
(SJA1105T).

This is due to an apparent documentation error that also made its way
into the driver, which patch 1/3 now fixes.

While investigating and then testing, I've found 2 more bugs, which are
patches 2/3 and 3/3.
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Signed-off-by: David S. Miller <davem@davemloft.net>